Fortunately i left my Oscilloscope back in University
but on the spec sheet you will see several references to its sine wave characteristics and quality of output
output voltage distortion = < 5% full load
crest factor = up to 5:1
one often overlooked feature of a UPS is its ability to sheild equipment from surges not sure how that relates to aquarium equipment but why not protect it its worth more than most compys
Now for an update i was only able to get 4... 4... only 4... and one of them is a 1250model i was ****ed the dude told me he would hold them for me but what can you do anyways i can get a ton of POWERWARE PRESTIGE model UPS's. They are a quality brand name but i cant find the spec sheet for them yet. They were used for the same purpose as the APCs and the voltages are the same however there are 6 batteries in them rather than 2 like the APC dont know how that will affect the pricing. I am waiting for a call from a distributor about the batteries. Next week i will really get on there case as i am out of pocket on these 4 as it is...
Man with those last few posts this is turning into a tech forumn not a reef forum shall we discuss Light Emitting Diodes too, i just found a wicked easy circuit to wire up moonlights to 120VAC.
Cheers,
Ken